here is some text here is some text here is some text
\[
	x^2
\]
here is some text here is some text here is some text%
\[%
	y=7x^2%
\]%
and more

some inline math $\frac{x}{2}+\mathcal{C}$ followed by

some old school displayed-math%
$$%
	\frac{x}{2}+\mathcal{C}%
$$%
followed by

here is some text here is some text here is some text
\[
	x^2
\]
here is some text here is some text here is some text%
\[%
	y=7x^2%
\]%
and more

some inline math $\frac{x}{2}+\mathcal{C}$ followed by

some old school displayed-math%
$$%
	\frac{x}{2}+\mathcal{C}%
$$%
followed by
